Finding the Fourth Proportional to 153,173.22, 211,377.15 and 86,105.22

Step by Step Solution

1. Step 1: Write the proportion equation
   153,173.22 : 211,377.15 = 86,105.22 : x
2. Step 2: Convert to fraction form
   153,173.22/211,377.15 = 86,105.22/x
3. Step 3: Cross multiply
   153,173.22x = 211,377.15 × 86,105.22
4. Step 4: Simplify right side
   153,173.22x = 18,200,676,003.72
5. Step 5: Solve for x
   x = 18,200,676,003.72/153,173.22
6. Step 6: Final answer
   x = 118,824.14